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OverLord2011 [107]
3 years ago
11

Mammals have two traits that set them apart from all other animal.

Biology
1 answer:
Sav [38]3 years ago
6 0

One thing that separates us from the other animal classifications is that we have hair, everywhere! :D The next major difference is the fact that mammals don't lay egg's, we give birth to live creatures. Those are the 2 biggest things that distinguish us from them.

Hope I helped. :)

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Two protein kinases, K1 and K2, function sequentially in an intracellular signaling pathway. If either kinase contains a mutatio
Korolek [52]

Answer:

The order must be K2→K1, since the permanently active K1 allele (K1a) is able to propagate the signal onward even when its upstream activator K2 is inactive (K2i). The reverse order would have resulted in a failure to signal (K1a→K2i), since the permanently active K1a kinase would be attempting to activate a dead K2i kinase.

Explanation:

  • You characterize a double mutant cell that contains K2 with type I mutation and K1 with type II mutation.
  • You observe that the response is seen even when no extracellular signal is provided.
  • In the normal pathway, i f K1 activat es K2, we expect t his combinat ion of two m utants to show no  response with or without ext racell ular signal. This is because no matt er how active K1 i s, it would be unable to  act ivate a mutant K2 that i s an activit y defi cient. If we reverse the order, K2 activating K1, the above  observati on is valid. Therefore, in the normal signaling pathway, K2 activates K1.
7 0
3 years ago
the eastern kingbird hunts by catching flying insects in mid-air, an approach which requires impressive and energetic acrobatic
tangare [24]

It is safe to assume that the eastern kingbird will have a <u>type 2 </u><u>functional response </u><u>to an increase in </u><u>prey abundance</u><u>.</u>

The functional response, in ecology, is a data-based description of the behavior of certain animals' consumption rates in response to a change in prey density. This can be of three kinds:

  • Type 1: An increase in consumption
  • Type 2: A decrease in consumption
  • Type 3:  Decreased consumption, followed by a quick increase.

The Eastern kingbird is likely to follow a <u>type 1 </u><u>functional response</u> to the presence of more prey. The reason for this, aside from it being the most common response, is that the eastern kingbird consumes insects, which do not provide a great amount of energy, in a way that consumes much energy. Therefore it is logical to assume that the kingbird will consume more prey to better sustain its rigorous feeding habits.

To learn more visit:

brainly.com/question/845236?referrer=searchResults

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2 years ago
Explain why two oxygen atoms bond to a carbon atom to make a stable molecule of a carbon dioxide?
schepotkina [342]

Answer:

10 H atoms combine with 5 oxygen to form 5 water molecules.

Explanation:

those substances which having low boiling point or low melting point such as water they form covalent bond.

Covalent bonds form between non-metal atoms. Each bond consists of a shared pair of electrons, and is very strong. Simple molecular substances and giant covalent structures have different properties.

3 0
3 years ago
PLEASEEEE HELPP If an organism is produced by sexual reproduction, which of these claims is true of its chromosomes?
stiks02 [169]

Answer:

It receives half of its chromosomes from each of its parents.

Explanation:

5 0
2 years ago
Density = Mass divided by Volume. What is the density of a block of wood that has a mass of 30 grams and a volume of 10 cubic ce
Darina [25.2K]

Answer:

the density is 3.

Explanation:

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