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yKpoI14uk [10]
3 years ago
15

A unique characteristic of mammals is that they _____.

Biology
2 answers:
katovenus [111]3 years ago
5 0
A. have hair
--------------
blsea [12.9K]3 years ago
3 0

Answer: The correct answer for the blank is- A) Have hairs.

As per the University of Michigan, there are primarily three characteristics/ features that are unique to mammals. These are as follows-

1) Presence of hairs on body.

2) Presence of mammary glands ( primarily used of feeding the neonates).

3) Presence of three bones in the middle ear ( that is Malleus, incus, and stapes).

The most significant function of hairs in mammals is that they provide insulation against cold by conserving heat of body. In certain nocturnal animals ( which are active during night time), they serve as sensory organs.

Thus, option A) is the right answer.

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Asap.....Explain how observations are used to form hypotheses​
Amiraneli [1.4K]

Explanation:

Observations allow us to collect data that we can connect back to the central problem. From this data we can start to form hypotheses (predictions on possible solutions or outcomes).

6 0
1 year ago
Patty (age 7) has symptoms that include a skin rash, fever slowed growth, fatigue, and swelling in the joints. she was diagnosed
mafiozo [28]

Patty (age 7) has symptoms that include a skin rash, fever slowed growth, fatigue, and swelling in the joints. She was diagnosed as having juvenile rheumatoid arthritis.

What is juvenile rheumatoid arthritis described as?

Juvenile rheumatoid arthritis is the most common kind of arthritis in children. It is characterized by heat and discomfort and causes the joints to expand. The duration of acute arthritis can range from a few weeks or months to years or even a lifetime. It can also be persistent. IA types include autoimmune and autoinflammatory illnesses. This suggests that the immune system, which is meant to fight off viruses and pathogens, becomes confused and attacks the body's cells and tissues. The doctor can suggest blood testing for C-reactive protein and erythrocyte sedimentation rate. These blood tests evaluate inflammatory markers or markers of inflammation.

To learn more about Juvenile rheumatoid arthritis, click below

brainly.com/question/13158067

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6 0
1 year ago
When you sweat, what body systems are interacting?
Anni [7]
how much sweat is released by each gland is determined by many factors, including gender, genetics, environmental conditions, age or your fitness level. they are also triggered by stress, anxiety or fluctuating hormones. 
7 0
3 years ago
Which of the following statements about the products of glycolysis is TRUE?
lana66690 [7]
<span>You are likely talking about aerobic respiration rather then just glycolysis based on the options: The third option seems best, pyruvate is heavily oxidized during the Kreb's cycle and removed as CO2.
 
Wrong options
Option1- FADH2 is also another highly energetic molecule produced during

Option2- oxidation of pyruvate is a highly directional process and can be considered irreversible in the cell

Option4- Aerobic respiration RELEASES energy from pyruvate and the into NADH/FADH which is then captured by the electron transport chain. An exergonic rxn would take in energy and would not happen spontaneously


This can be looked from different perspectives, but let me know if my answer made sense. </span>
7 0
3 years ago
What is electrophoresis? Why does it allow scientists to separate pieces of DNA?
attashe74 [19]
Genetic fingerprinting – the analysis of DNA in order to identify the individual from which the DNA was taken to establish the genetic relatedness of individuals. It is now commonly used in forensic science (for example to identify someone from a blood sample) and to determine whether individuals of endangered species in captivity have been bred or captured from the wild. 
<span>•DNA sequencing – the determination of the precise sequence of nucleotides in a sample of DNA or even a whole genome e.g. the Human Genome Project. </span>

<span>The process of electrophoresis: </span>
<span>DNA is chopped, close to the VNTR regions, into fragments using restriction enzymes. The DNA fragments are placed on the agarose gel and a direct current is applied continuously to the gel. The DNA fragments are attracted to the anode. The shorter the fragment, the faster it moves. </span>
<span>The fragments are transferred onto an absorbent paper placed on top of the gel. The paper is heated to separate the 2 strands in each DNA molecule. Complementary probes which have a radioactive phosphorus isotope are and this pair up with the DNA strands. The paper is placed on an X-ray film and the film goes dark due to radiation emitted by the probes. Now we end up with a pattern of dark stripes on the film matching the positions reached by the fragments in the agarose gel.</span>
8 0
3 years ago
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