what happens during meiosis I and meiosis II?

Answer:

Explanation:

Social insects use pheromones to send messages to other members of their colonies.  Ants leave pheromone trails that lead other ants to food sources.  Certain species of honey bees release pheromones when they are injured or attacked to signal other members of the hive that there is danger, or that the hive is under attack.

When chiasmata can first be seen in cells using a microscope, the following processes has most likely occurred in prophase I.

Recombination can occur at any two chromatids within this tetrad structure.

Crossovers between homologous chromatids can be visualized in structures known as chiasmata, which appear late in prophase I.

Thus, option "C" is correct, Prophase I.

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In the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.

Gel electrophoresis may be defined as a technique that separates DNA, RNA, and proteins on the basis of their molecular weight.

As we all know, DNA fragments are negatively charged in nature, and hence they always move towards the positive pole of the electric field.

Therefore, in the gel electrophoresis, the DNA fragments are repelled from the negative pole of the electric field.

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Answer:

Ceramics

Explanation:

clay is used in pottery to make plates, bowls and vases

Answer:

Fishing down the food web is the process whereby fisheries in a given ecosystem, "having depleted the large predatory fish on top of the food web, turn to increasingly smaller species, finally ending up with previously spurned small fish and invertebrates".

Answer:

Before the industrial revolution, there wasn't much pollution/soot, and the moths were mostly light colored. When humans started using machines for everything, soot coated the trees and the light colored moths were easier for birds (predators) to see. The moths became mostly dark colored, because it was better camoflauge.

Now that we have environmental restrictions, there isn't as much soot everywhere. Now moths are mostly light colored again, because the dark moths are easier to see.

Answer:

Explanation:

1. b- sunlight

2. c- Animals participate in cellular respiration, while plants participate in both cellular respiration and photosynthesis

3. a- chemicallly broken down into sugar

7. d- The oxidation of food through the process of cellular respiration

8. C- I think i'm not sure

9.

10. B- light energy

Answer:

given that they are marina ideas and each one has an introduction of oxy

Explanation:

Answer:

competition among individuals of different species is known as Interspecific competition

Answer:

bone

Explanation:

it takes decades for it to decay so it remains can be preserved

Answer:

Q5: Vestigal Structures

Q8: Enviorment

Explanation:

Q5:

Vestigial structures can provide insights into an organism's ancestry. For instance, the tiny vestigial leg bones found in some snakes reflect that snakes had a four-legged ancestor. The small leg-like structures of some snakes species, like the Boa constrictor, are vestigial structures.

Q8:Birds' beaks are the tools they have to use to gather food. The best adapted (fittest) to the available food have the best chance of surviving (not starving to death) and of having descendants. The different variations in these beak forms are each an experiment in natural selection.

Answer:

Vestigial structures are structures that have a good function in the past, but are now no longer used. Let's say I have an unknown type of leg, then that leg in the future generation of my family no longer has that leg or it's changed. This is caused by variation and genetic changes, which we discuss right now.

In natural selection, variations are what likely causes beaks to vary. Variations are similar to a new thing, generation, or type of something. Like I have a lamp shade are there are tons of the same brand with different colors, that is a variation of one thing.

Ms.Barrios was being targeted by people who wanted her to by girl shampoo on the street when men pasted by they did not do a single thing to them

Answer:

Longest : 100 , Shortest : 60

Explanation:

Step by step to answer :

Take  3+4+5 = 12

240/12 = 20

20 x 5 = 100 (Longest )
20 x 3 = 60  (Shortest )
20 x 4 = 80

100 + 60 + 80 = 240 correct

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Non-specific external immune responses are the first immune response against pathogens. Thus, the given statement B is incorrect.

The immune response elicited by external parts of the body are non-specific in action. These constitute the first line of defense. These include skin, tears, mucus, sebum, nasal hair, eyelashes, etc.

The skin is a mechanical barrier that prevents the entry of pathogens into the body. The skin secretes sebum which has a pH in the range of 3-5 which inhibits the growth of microorganisms.

The mucus entraps microorganisms and thus prevents them from entering inside the body. It also secretes lysozyme, which is a hydrolytic enzyme that kills the foreign invading pathogen.

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Answer:

1. mitogens

2. mitotic

Explanation:

have a nice day

Answer:

Here we see that there are three ways for an offspring to exhibit a dominant trait and one way for recessive. This means that there is a 75% probability that an offspring will have the dominant trait and a 25% probability that an offspring will have a recessive trait.

D) to move mucus towards the throat

Hope this helps!

Answer:

D: To move mucus towards the throat.

Explanation:

Answer:

name of the genus is capitalized. (Generic name)

Answer:

a) The Sun is one of many stars in the Universe.

Explanation:

The Sun is one of many stars in the Universe, as there are 200 billion stars in our galaxy alone. Therefore, option (a) is the correct answer.

Gravity!

Gravity is the natural downward force, proportional to mass. Gravity is strongest at Earth's surface.

Explanation:

They absorb greenhouse gases,regulate water flows and protect coastal communities from extreme events and sea level rise

Answer:

At the 5th trophic level would be quaternary consumers that eat tertiary consumers.

Explanation:

Producers include photosynthetic organisms such as plants and algae.  They are eaten by primary consumers (herbivores).  Secondary consumers include omnivores and predators that prey on primary consumers.  Tertiary consumers include omnivores and predators that prey on primary and secondary consumers.  Quaternary consumers include omnivores and predators that prey on all lower trophic levels.

Answer:

Seems like cedar apple fungus

Explanation:

Cedar apple fungus can infect multiple plant species including apples, cedar, etc. Here's a picture of it:

The organ system interacts with each other to maintain the normal functioning of the body. The composition of blood changes due to this interaction. The change is the blood going out from the lungs is deoxygenated and the one coming to the lungs is oxygenated.

The respiratory system involves inhalation of oxygen and using this to release energy and exhalation of carbon dioxide.

The circulatory system is comprised of the heart and blood vessels. The heart pumps blood to different body organs through these blood vessels.

The transfer of oxygen is done with the help of blood. During this transfer, the composition of blood changes from being oxygenated means having oxygen to deoxygenated means having carbon dioxide.

Thus, in this way, the interaction changes the composition of blood.

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Answer:

hemoglobin gets affected

Explanation:

Explanation:

the cell walls of fungi are made of chitin, not cellulose. Also, fungi absorb nutrients from other organisms, whereas plants make their own food. These are just a few of the reasons fungi are now placed in their own kingdom.