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Kisachek [45]
3 years ago
7

Photosynthetic (autotrophic) protistans include all of the following except?

Biology
1 answer:
stealth61 [152]3 years ago
7 0
Letter : F is the answer
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“blank” investigations are best for demonstrating cause-and-effect relationships. a. descriptive b.comparative c. experimental
FromTheMoon [43]

C. Experimental

Explanation - The cause and effect of a process would be studied in experimental investigations. However, in descriptive studies, relationship between the factors are not studies rather the detail of the process is studied. In comparative investigation, several factors are compared and its effects are analyzed.

In experimental investigations, experiments are carried out based on the hypothesis and then it is validated accordingly. Validation is a must to prove and disprove the hypothesis. Therefore, experimental data and hypothesis are related.

8 0
3 years ago
Bobby touches his newborn brother's palm, and his little brother takes hold of Bobby's finger and will not let go. This is known
VARVARA [1.3K]

Answer: conditioned

Bobby touches his newborn brother's palm, and his little brother takes hold of Bobby's finger and will not let go. This is known as the conditioned reflex.

Explanation:

A conditioned reflex is a response or behaviour learned after birth. So, once the newborn acquires this learned response, they can perform them even without thinking about it.

Thus, Bobby's brother (the newborn) holding on to his finger and not letting go shows that it is a conditioned reflex

7 0
3 years ago
Me ayudan a escoger? :(
Delicious77 [7]

Answer:

  • El núcleo contiene (1) el material genetico.
  • La mitochondria (2) tiene una doble membrana.
  • La cromatina consta de (3) fibrillas de ADN.
  • Los lisosomas (4) contienen enzimas digestivos.
  • El citoesqueleto es (5) la red proteica distribuida por el citosol.
  • El nucléolo es (6) la zona donde se forman los ribosomas.
  • El centrosoma es (7) el orgánulo encargado de la organización de los filamentos del citoesqueleto.
  • El aparato de Golgi (8) forma vesiculas de secrecion.
  • El retículo endoplasmático liso (9) se encarga de la síntesis de lípidos de membrana.
  • La vacuola (10) ayuda a mantener la forma de la célula vegetal.
  • La pared celular (11) protege a las células vegetales.
  • El retículo endoplasmático rugoso tiene (12) sáculos membranosos con ribosomas adosados.
  • (13) Un apilamiento de los tilacoides forma una grana.
  • (14) En el interior de los cloroplastos se encuentra los tilacoides.
5 0
3 years ago
a botanist hypothesizes that as flowers evolved tubular corollas, their nectar attracted a particular species of long-tongued fl
Ivenika [448]

One who researches 'botany' is called a 'botanist'. Botany is one of the world's oldest natural sciences. initially, Botany protected all plant-like organisms inclusive of algae, lichens, ferns, fungi, and mosses in conjunction with actual flowers.

Darwin understood the centrality of development in a deep and profoundly vital manner, both for animals and for flora. His notebooks document his cautious studying and interest in animal embryology and plant leaf and floral organ morphogenesis.

Butterfly-pollinated plants usually have pretty flashy flowers in hues like crimson and purple. these plants do not have the quantity of pollen that bee-attracting flowers do, however they've huge components of nectar to feed the butterflies.

Learn more about botanists here

brainly.com/question/19712716

#SPJ4

7 0
1 year ago
When one atoms electron is given up to another atom both atoms become what?
Amiraneli [1.4K]
When an electron<span> moves from </span>one atom<span> to </span>another<span>, </span>both atoms become<span> ions.</span>
4 0
3 years ago
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