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Kobotan [32]
3 years ago
6

PLEASE HELP!! I WILL MARK MOST BRAINLIEST ANSWER

Biology
1 answer:
Zanzabum3 years ago
6 0
Answer:
           Most zoologists believe that echinoderms share a common ancestry with hemichordates and chordates because of:
1. The deuterostome characteristics that they share (see figure 1),
2. An anus that develops in the region of the blastopore.
3. A coelom that forms from outpockets of the embryonic gut tract (vertebrate chordates are an exception).
4. And radial, indeterminate cleavage. 

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Scientists have recently discovered a community of bacteria and clams living under an ice shelf in Antarctica. These organisms l
Shkiper50 [21]

Answer:

Option 3, of the abiotic factors found in their environment

Explanation:

The abiotic factors such as absence of sunlight and extremely cold temperature represents picture of an extreme habitat under an ice shelf in Antarctica.  

The optimum temperature requirements of bacteria for its survival ranges from 10oC to 20oC. In case,  if a bacteria lives in an environment where temperature is less than -5oC or higher than  50oC, then such habitats are considered to be “habitats with extremities”  as special physiological mechanisms are required to maintain the homeostasis and survive.

Likewise absence of sunlight further adds to the extremities of the habitat.

Option 3, is correct

5 0
3 years ago
The crocodile species is believed to have been around for how long? 2 million years or 200 million years?
Lerok [7]
It is 200 million years because it has been around for a long time.
4 0
3 years ago
Read 2 more answers
read the passage to answer the question.even though scorpions are related to spiders, there are many differences between the two
Gennadij [26K]

Scorpion cells undergo aerobic respiration, during aerobic respiration oxygen is used, and ATP is created.

During aerobic cellular respiration, glucose is absorbed with oxygen to form ATP, which can be used by cells. Carbon dioxide and air are formed as by-products. The overall extension to aerobic cellular respiration is: During cellular respiration, glucose and oxygen form ATP.

This process takes place in the mitochondria. So respiration occurs in animals and plants because both have mitochondria.

Aerobic respiration is respiration that requires oxygen while anaerobic respiration is respiration that does not require oxygen. Aerobic respiration consists of several stages, namely: glycolysis, oxidative decarboxylation, Krebs cycle, and the electron transport chain which have been discussed in the previous material.

Learn more about aerobic respiration at brainly.com/question/11691469

#SPJ4

5 0
1 year ago
Does temperature appear to have been relevant to the amount of oxygen consumed?
OverLord2011 [107]

Answer:

At a thermoneutral ambient temperature, cooling either thermode increased oxygen consumption. In a cold environment, cooling either thermode increased the rate of oxygen consumption more than at a thermoneutral temperature. Heating either thermode tended to decrease oxygen consumption in a cold environment. 3.

Explanation:

6 0
3 years ago
In the formula, E K = 1/2 • m • v 2 if mass (m) was doubled, how much would kinetic energy
Viktor [21]

Answer:

mass doubled makes KE twice as large

velocity doubled makes KE 4 times as large

Explanation:

Try it with an example

m = 4

v = 8

KE = 1/2 m * v^2

KE = 1/2*4 * 8^2

KE = 1/2 * 4 * 64

KE = 128

Now double the mass

m  = 8

v = 8

KE = 1/2 8 * 8^2

KE = 1/2 8 * 64

KE = 4 * 64

KE = 256 double what it started out as.

Now do it again.

m = 4     That was the original mass

v = 16

KE = 1/2 4 * 16^2

KE = 2 * 256

KE = 512

When the velocity is doubled the KE becomes 4 times as big.

4*128 = 512

4 0
3 years ago
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