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Archy [21]
3 years ago
7

The two upper chambers of the heart are separated from each other by the

Biology
2 answers:
lisabon 2012 [21]3 years ago
8 0
 lungs or ribs that separate the two upper chambers from each other
ExtremeBDS [4]3 years ago
4 0
The upper chambers<span>, called atria, are </span>separated <span>by the interatrial septum. The lower </span>chambers<span>, called ventricles, are </span>separated<span> by the inter ventricular septum. More generally these are called septa, or partitions. Ribs are outside of the heart, as are the lungs. </span>
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Suggest two reasons why a person aged 16–49 years might not be using contraception.
7nadin3 [17]

Answer and Explanation:

The people within this age range most likely want a baby for themselves/want more babies, or they don't feel like they should have to be limited to the amount of babies they want. Since it is their life and their bodies, they think it is up to them to decide how many to have and whether to have one or not.

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

8 0
3 years ago
Why is the hypothesis that black cats cause bad luck not science?
Alja [10]

Because it has no scientific explanation. As a matter of fact it has no explanation.

The things that black cats cause bad luck are a myth, and do not have any proof or explanation, meaning it cannot be concluded neither as a hypothesis nor scientific.


Hope it helped,


BioTeacher101

7 0
3 years ago
Which level of biological classification do Mammalia and Hominidae represent, respectively?
cupoosta [38]
The answer is class and family.

<span>Taxonomic groups are used for biological classification. There are eight main taxonomic groups: domain, kingdom, phylum, class, order, family, genus and species, with the domain as the most inclusive and species as the least inclusive. If we take a look on Mammalia and Hominidae classification, we can assume that Mammalia represents class, and Hominidae represents family:</span>

<span>1. Domain: Eukarya</span>

<span>2. Kingdom: Animalia</span>

<span>3. Phylum: Chordata</span>

<span><u>4. Class: Mammalia</u></span>

<span>5. Order: Primates</span>

<span><u>6. Family: Hominidae</u></span>

<span>7. Genus: Homo</span>

<span>8. Species: Homo sapiens</span>

3 0
3 years ago
Damage to your somatic nervous system affects voluntary signaling. which muscles would be affected?
SSSSS [86.1K]
<span>The somatic nervous system is known as the voluntary nervous system, is a part of the peripheral nervous system. It consists of neurons that are associated with skeletal or striated muscle fibers. It affects voluntary signaling for many resion. A large part of the PNS is composed of 12 pairs of cranial nerves and 31 pairs of spinal nerves.</span>
6 0
3 years ago
Please help me asap i will give brainlest
ZanzabumX [31]

Answer:

number 1 its 25 number 2 its 10000

Explanation:

8 0
3 years ago
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