1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
9

Which vascular structure is responsible for delivering oxygenated blood to the left atrium?

Biology
1 answer:
lesya692 [45]3 years ago
6 0
The pulmonary vein brings the oxygenated (clean) blood to the left atrium.
Pls mark this as the brainliest

You might be interested in
How does the density of liquid water compare with the<br> density of ice?
Orlov [11]

Answer:

The normal pattern for most compounds is that as the temperature of the liquid increases, the density decreases as the molecules spread out from each other. ... The ice structure takes up more volume than the liquid water molecules, hence ice is less dense than liquid water.

4 0
3 years ago
The most abundant minerals found in granitic (felsic) igneous rocks include
mixer [17]
The most common felsic rock is granite. Common felsic minerals include quartz,muscovite<span>, </span>orthoclase<span>, and the </span>sodium<span>-rich </span>plagioclase feldspars<span>. In terms of chemistry, felsic minerals and rocks are at the other end of the elemental spectrum from the mafic minerals and rocks.</span>
7 0
2 years ago
Help pleas due in 25 minutes. this is the 3 time that I have posted this question
ANEK [815]

Answer:

you would use your muscles from your legs and your body to get up from your bed and go to your fridge, your muscular system helps you up by being a structure for the muscles to apply force, you will use arm muscles for getting out cookies and milk. Then you will drink and eat your cookies and milk with your jaw muscle and send it down your esophagus to the intestines for the digestive system to break down your food. Then you will use your legs(muscles) to go back to your bed and sleep. (don't copy this whole thing it is not complete and you must add stuff so it is complete im just giving you an idea or the structure of this essay)

6 0
3 years ago
If you look at a cross section of a plant stem and see organized bundles of vascular tissue only near the outer surface of the s
Anna71 [15]
The answer is C I’m pretty sure
6 0
2 years ago
The students concluded that pea plants grew better in compost than did melon plants. Which of the following best addresses the v
musickatia [10]

Answer:

c. The conclusion is invalid because other variables in the experiment affected the results.

Explanation:

Consider the complete problem:

A group of students designed an experiment to determine the effect of compost on the germination and growth of plants.

The students set up experimental plots by mixing different ratios of soil and compost. They planted 20 pea and 20 melon

seeds in each plot and watered each plot regularly. The students recorded the number of seeds that germinated, and as the

plants grew they recorded the plant length, number and size of leaves, and general health observations.

The following observations were recorded.

 In all treatments, more pea seeds germinated than melon seeds

 There was a week of rainy weather at 3 weeks

 Melon plants developed a fungal growth at four weeks

 Melon plants grew longer than pea plants, but many melon leaves showed signs of yellowing as the weeks passed

The students concluded that pea plants grew better in compost than did melon plants. Which of the following best

addresses the validity of the conclusion made by the students?

a. The conclusion is valid because the independent and dependent variables in the experiment were controlled.

b. The conclusion is valid because the experimental design included a large sample size.

c. The conclusion is invalid because other variables in the experiment affected the results.

d. The conclusion is invalid because the units of measurement were not given in the experimental design.

<em>In order for the conclusion to be valid, all the independent variables should have been controlled. In this case, the independent variables such as the amount of water received by the plants, nutrient requirement of the plants, etc. were not controlled leading to fungal attack on the melon plant.</em>

<em>Hence, the conclusion is invalid because other variables that ought to have been controlled affected the experimental outcome.</em>

<em>The correct option is c.</em>

4 0
3 years ago
Other questions:
  • What term describes the molecules on which enzymes act?
    13·1 answer
  • Oxygen is an important part of
    14·1 answer
  • Meiosis _____ the ploidy of cells
    12·2 answers
  • What does a large-scale mutation affect? A. the nucleotides with either a substitution, deletion or insertion B. sections in the
    6·1 answer
  • If an unshielded sample of radioactive material emits alpha particles, what effect will it have on a person sitting in the next
    9·2 answers
  • Im not sure what a mineral is.
    14·1 answer
  • What is the ozonosphere
    5·2 answers
  •  Earth's magnetic field has had reversed polarity in the last 4 million years.
    8·1 answer
  • A student conducted an experiment to test whether talking to plants would help them to grow faster. The student talked to one gr
    9·2 answers
  • PLSS HELP!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!