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Stolb23 [73]
3 years ago
7

Which part of the heart has the thickest walls?

Biology
2 answers:
devlian [24]3 years ago
7 0

Answer:

left ventricle. Hope this helps!

lys-0071 [83]3 years ago
3 0

Answer:

left ventricle

Explanatation:

The left and right ventricle are similar in structure, the walls of the left ventricle are thicker and stronger.

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Many ocean-dwelling animals can use sound waves to communicate with other animals and locate food and obstacles over longer dist
Vaselesa [24]
Well, this is called echolocation. It is possible because the animals make noise, and it bounces off objects and plants. Their brain takes the sound waves that bounce off objects and register it into their brain at another way of seeing. They can see up to 200 miles away with this, and other animals can hear these noises from far away. I hope this answer cam to your desired help.
8 0
3 years ago
Read 2 more answers
Which of the following statements is true?
Feliz [49]

Answer:

A.

Explanation:

Sexual reproduction requires that diploid organisms produce haploid cells that can fuse during fertilization to form diploid offspring.

3 0
3 years ago
In a certain population of fruit flies, 640 out of 1000 have red eyes, while the remainder have sepia eyes. The sepia eye trait
irga5000 [103]

Answer:

The correct answer is 160.

Explanation:

Based on the given question, the total number of fruit flies is 1000, of which red eye flies are 640. Thus, the number of sepia eye flies will be 1000-640 = 360.  

On the basis of the Hardy-Weinberg equation, p+q = 1, in which p is the rate of recurrence of one allele, that is, dominant and q is the rate of recurrence of the other allele, that is, recessive.  

q^2 for the population is 360/1000 = 0.36, q = 0.6.  

Therefore, p = 1-q = 1-0.6 = 0.4.  

The frequency of homozygous dominant allele is denoted by p^2 = 0.16.  

Hence, the number of homozygous dominant for red eye color would be 16% of 1000 which will be equal to 160.  

5 0
3 years ago
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True or false? The absence of a trait cannot be used as a synapomorphy in phylogenetic analysis, only shared derived traits that
Cerrena [4.2K]

Answer:

This statement is False.

Explanation:

A shared apo-morphy which differentiate a clade from other organisms is called synapomorphy. In simple words, members of monophyletic group shares an apomorphy which indicate the presence or absence of certain organs from clade.

For example, loss of legs in snakes is an important  synapomorphy.

3 0
3 years ago
During the Devonian period of Gondwanaland what were the two organisms that thrived?
gulaghasi [49]

Answer:

about the Trilobites is =Trilobites ( /ˈtraɪləˌbaɪt, ˈtrɪ-, -loʊ-/;[4][5] meaning "three lobes") are a group of extinct marine artiopodan arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 300 million years.[6] . and about the algae is =Algae (/ˈældʒi, ˈælɡi/; singular alga /ˈælɡə/) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 metres (160 ft) in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem and phloem, which are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, Spirogyra and stoneworts.

Explanation:

5 0
3 years ago
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